Coffee,cancer and Califorina.

 Yet one more warning label.

  Coffee sales leader Starbucks and several  other coffee sellers are fighting a lawsuit that alleges roasted coffee beans contain low levels of a carcinogen — and therefore coffee products sold in California, from lattes to packaged beans, should carry Surgeon General-like warnings.

   A  public interest group, the Council for Education and Research on Toxics, or CERT, sued roughly over 50 companies, claiming the state’s Proposition 65, which requires warning labels on anything that contains materials that cause cancer, should apply to coffee.

   CERT lawyer Raphael Metzger argued in court this week that the benefits of coffee are “just a bunch of hypotheses” and that Californians have been exposed to “really high levels of a carcinogen” by drinking coffee, according to Law360.